L 5 ] 



Craters. See Volcanoes. 



Curtius, Professor, his notes on the 



temperature of various springs in 



Greece, 219, 220. 

 Cuvier, one of the founders of the 



Archaeology of organic life, 275, 276; 



discovery of fossil crocodiles in the 



tertiary formation, 276. 



Daimachos, on the phenomena attend- 

 ing the fall of the stone of jEgos 

 Potamos, 122. 



Dalinan, on the existence of Chionoea 

 araneoides in polar snow, 353. 



Dalton, observed the southern lights in 

 England, 192. 



Dante, quotation from, 328. 



Darwin, Charles, ibssil vegetation in 

 the travertine of Van Diemen's Land, 

 221 ; central volcanoes regarded as 

 volcanic chains of small extent on 

 parallel fissures, 237; instructive 

 materials in the temperate Zones of 

 the Southern Hemisphere for the 

 study of the present and past geo- 

 graphy of plants, 286 ; on the fiord 

 formation at the south-east end of 

 America, 297; on the elevation and 

 depression of the bottom of the South 

 Sea, 302; rich luxuriance of animal 

 life in the ocean, 314,315; on the 

 volcano of Aconcagua, 338. 



Daubeny, on volcanoes. See Trans- 

 lator's notes, 152, 198, 199, 206, 

 215, 221, 225, 228, 231, 232,233, 

 235, 243, 244. 



Daussy, his barometric experiments, 

 303; observations on the velocity 

 of the equatorial current, 312. 



Davy, Sir Humphrey, hypothesis on 

 active volcanic phenomena, 234; on 

 the low temperature of water on 

 shoals, 314. 



Dead Sea, its depression below the 

 level of the Mediterranean, 301. 



Dechen, Von, on the depth of the coal 

 basin of Liege, 151. 



Delcrois. See Coraboeuf. 



Descartes, his fragments of a contem- 

 plated work, entitled ' Monde,' 50; 

 on comets, 128, 129. 



Dcshayes and Lyell, their investiga- 

 tions on the numerical relations of 

 extinct and existing organic life, 

 277. 



Dicrearchus, his 'parallel of the dia- 

 phragm,' 293. 



Diogenes, Laertius, on the aerolite of 

 ^Egos Potamos, 103, 109, 122, 123. 



D'Orbigny, Ibssil remains from the 

 Himalaya and the Indian plains of 

 ditch, 279. 



Dove, on the similar action of the de- 

 clination needle to the atmospheric 

 electrometer, 188; 'law of rotation,' 

 321 ; on the formation and appear- 

 ance of clouds, 322; on the differ- 

 ence between the true temperature 

 of the surface of the ground and the 

 indications of a thermometer sus- 

 pended in the shade, 332; hygro- 

 metric windrose, 310, 341. 



Doyere, his beautiful experiments on 

 the tenacity of life in animalcules, 

 354. 



Drake, shaking of the earth for suc- 

 cessive days in the United States 

 (1811-12), 207. 



Dufrenoy et Elie de Beaumont, Geo- 

 logic de la France. 253, 258, 259, 

 260,261,263,267,268. 



Dumas, results of his chemical analysis 

 of the atmosphere, 317. 



Dunlop, on the cornet of 1825, 88. 



Duperrey, on the configuration of the 

 magnetic equator, 177; pendulum 

 oscillations, 158. 



Dupre/., influence of trees on the in- 

 tensity of electricity in the atmo- 

 sphere, 343. 



Eandi, Vassalli, electric perturbation 

 during the protracted earthquake of 

 Pignerol, 202. 



Earth, survey of its crust, 54, 55; rela- 

 tive magnitude, &c. in the Solar Sys- 

 tem, 80 82; general description of 

 terrestrial phenomena, 145369; 

 geographical distribution, 152, 153; 

 its mean density, 161 164; internal 

 heat and temperature, 164 168; 

 electro-magnetic activity, 169 186; 

 conjectures on its early high tempera- 

 ture, 164; interior increase of heat 

 with increasing depth, 152; greatest 

 depths reached by human labour, 

 148, 149; methods employed to in- 

 vestigate the curvature of its surface, 

 156 160; reaction of the interior 

 on the external crust, 152, 197 



